Mold.



PATENTED JAN. 8, 1907.

.W. P. EARNHE'ART.

MOLD.

APPLICATION TILED MAY 5.190s

INVENTOR WITNESSES WILLIAM "F. niiimirsiiirr, or wisizissnoec. rimnsrsvzinnc ASSIGTOR TU enemies r. nicinsson. or HETEBURG, PENilFYLVAIflEA.

of Letters Patent. 1 Application filed m 5, 1906. semi ri 315,290;

lmeeoeee. Specification Patented Jan. .8, 1 90?.

To all! whom it may concern:

Be it knownthst I, Wi 1AM EARN- HEART, a resident of .WZEJnsb rg, in the county of Allegheny end'Ste'Le of Pennsyh.

5. Veins, have invented s new and useful inn provcinent in h ioh s end i do i'lerehy declare the following to bee. iuii, clear, and onset description thereor v My invention relates to molds, and has special relation to who; are known es sewec molds o1 cente i l The object of my invention is to provide such a form of mold winch 'Wiii he cheep, simple,- imdeiiicient in its construction, as

We as one-Which can he essilv, quickly, and conveniently set in position and removed Wh on desired,

My invention consists, generally stated, in

the novel arrangement, construction, and

combination of parts, as hereinafter more specificall set forth and described, and par ticularly pointed out in the claims.

To enable others .slriiled in the art to which my invention op ertains to construct and use my i111 roved mold, I will describe the some more 113/, referring to the accompanying drawings, in which Figure 1- isv n firticel section of e, sewermold embodying my invention. 2 is a longitudinal central section. of the some. Fig. 3 is on cnlerged detoii end View of a. portion of the segments emoloved. Fig. 4: is an enlarged section on the line 4 4, Fig. 1, looking in the direction of the arrow. Fig. 5 is s like view on the line 5 5, Fig. 1., looking in the direction of the zirrow. Fig. 6 is another vertical section of a. mold, sho 'ing my invention in another form.

Like symbols or" reference herein indicate ':-As illustrated. in said drawings, 1 represents the mold,which is composed of a memher. or cylinder A, formed of upper and lower I t sections or semnents 2 and constructed of sheet metal. These segments 2 are concnetin forming the mold 1, the side edges of ihe some are provided with downwardly-extendmg flanged portions 3,

like parts in each of the figures of the drawwhich are bent inweirdly from said 'cgments on the/ eonie angle --5 5' or inclination with each other and have the slotted holes 4 in med through esch end of the some for th rcccption of the hooked ends e, formed on the screw-rods '5. extending across and within the mold '2. end ,engsging'oc with. the tnrohncl. 'ih se screw :ods 5 are provided with right and hit hand threads at the inner ends of he some, Where thoy'sre 1 engaged by "tnrnlmckl '7 so that by turning sci-.1. buckle in'onc dire on the hent portions 3 will be pressed together, thereby pressing the two opposite segments together, 1 so as to firmly brace and sustain the same and which in a measure will expand the diameter of the existing mold-cylinder." Vihen said 710 buckle 7 is rotated in the opposite directiong the bent portions 3 are relieved and the segments are then permitted to contract orclose, and thus in a manner reduce the dieinclcr of said cylinder. At each end of the bent portions 5 on the upper segment 2 is formed a lug or projection. 8, which is formed by slitting said portions and bending up the same, so that when the pressure on such bent portions is relieved, as hereinbefore stated, the hooked ends 6 on the screw-rods can be placed sgsinst the rear of the projections 8, and then the turnbuckle 7 can he turned in the direction for relieving the segments for drawing in the sides of the upper segment to 8 5 disconnect said segments and to remove the" same. The operstion of my improved mold is as follows: The lower segment- 2 of'the cylinder 1 is placed in a trench, on which is previously laid the cement or other material for the lower portion of the sewer B, and then such materiel is placed around said lower segment, after which the upper segment 2 of said cylin- I der is placed upon the lower segment thereof. 5 The turnbuckle 7, carrying the screw-rods 5,

is then placed ginfiposition by inserting the hooked ends 6 on said sods within the slotted holes 1 in the bent portions 3 on said segments 2, snd' thcn said buckle is operated to tighten said bent portions against each other and to permit said segments to spread out Wardly to a limited extent. While the segments 2 are thus subjected to ressure from Within the cylinder formed by t 1e same when ic 5 thus in positi'on'and due to the notion of the 'buckle 7 and scrciwrods 5, itwill'prcsent the structure required on which the cement or together by v joint between the cylinders formed by their above described, so

- ders, so

abutting ends. The segments 10 for the ring 9 are provided at their ends with in? ward rojeqtions or lugs 11, which are bent back om said ends and are riveted to the said segments in order to provide for inclined faces 12 on said lugs.

r A turnbuckle 13, carrying and engaging the screw-rods 14, is placed within the cylinders and at right angles or diametrically. oppositethe turnbuckle 7 and the rods 5, and these rods 14 have a triangular 'shaped block 15- at their outer ends for engaging with the inclined faces 12. on the'lugs 11. When in rotating said turnbuckle 13 in the roperdirection, the blocks 15 will be move outward along said faces 12 by reason of the right and left hand screw-threads on said rods 14 en- 'gaging'with said turnbuckle, and so expand and press the segments 10 0f the ring 9 firmly, against the inner faces of said cylinders to brace and sustain the same and form a tight. joint between the cylinders and ring. When said turnbuckle 13 is rotated in the opposite direction, the blocks 15 will bewith rawn along the faces 12 on the lugs 11 to relieve the pressure on the segments 10 of the ring 9, and so permit said segments to contract or close, as well as in a measure reduce, the di ameter of the ring 9.

After the cement or other material has been placed over these cylinders and become set and it is desired to remove said cylinders for forming another section of the sewer the rods 14'are drawn inwardly through the turns buckle 13to relieve the pret 15 on the lugs 11 of the segmental ring 9; as

that said rods and ring can be taken out ofthe mold. After this is done the screw-rods 5 are drawn inwardly by the turnbuckle 7, as above described, to an extentto free the hooked ends 6 thereon from the pressure'exerted thereon within the holes 4 of the bent portions 3, when the ends 6 can be lifted out of said holes and be placed I in engagement with the rear of the projec-- segments '2 of the cylin that by the continued drawing in of said rods 5 the side portions of the said seg ments willbe drawn or be sprung in to a sufficient size, and thereby permit the said bent ortions on said segments to slide down along the like portions on the lower segments. This will permit the upper segment'sto be time 8 on the upper.

sure of the blocks freed from the wall of the sewer, and as the diameter of these segments is thus reduced the said segments can be slid along the lower sections and taken out, after which the lower segments can be taken out, so that the mold may beyvithdra'wn through the. sewer and entirely remove therefrom.

. In case it is the, mold for the purpose of forming a tight connection between the ends of the sections or cylinders a slotted lug 16 can'be connected to or formed at each end of the bent portions 3 on the upper segments 2 of said cylinder, so that a screw-bolt 17 can be placed within the cement forming the desired to add other means tov .slots of the adjacent lugs on each cylinder and so drawn up as to press cylinders tightly against each other.

tions 3 can be projected at right angles to-the side edges of the segments 2 and flared therefrom as shown in Fig. 6, so that strips of wood ,or other suitable material 18 can be placed between said flared portions, and then the segments and strips can be held in place by the screw-rods -5 passing through the same, and the strips can be withdrawn when desired lengthwise by taking out the rods 5. This will permit the upper segments 2- to drop down and-be freed from the cement, so that the bent portions 3 tnereon will rest upon the bent portions 3 on the lower segments, and then said segments can be withdrawn, as before described. ,"lhe mold can other than cylindrical, as well as in other It will also be evident that the bent por be made in tubular shapes the ends of the shapes, and can be provided with a number skilled laborer mechanics to use. the same, as

in the ordinary cases, while at the same time the mold presents a strong structure, and the sewer is molded in an eiiective, practical, and convenient manner. The mold being formed of pressed number of interlocking devices or other parts usually. employed on the same, as, well as the use of a number of bolts or rivets,

which were usually required to be counter;-

sunk in order not to mar or render unworkmanlike the appearance of; the sewer-face.

ltwill also do away with d s licated means usually-employed for use on pur case, an all rub e and not liab get out of order either when inuse or a being detached from the mold. The parts oth thelower and upper c finder-segments for different parts are strong and due to become-loosened or sheet metal will do away with a lter ' to secure by lietters Patent, is

are also absolutely interchangeable ,Q and the irnold is supported vertically and horizontally by'bothofthescrewerods, and such rods act astension members, as well as me nbers to "permit the mold to collapse.

-What I claim as -imyinvent-ion, and desire 11'. A moldfor sewers, &c'., consisting of sect ons onea'of NVl'IIOlL-IS'COllitpSlblS, and said i 2'. Arnold for sewers, &c., consisting of secse'ctions being adapted to be sustained expanded-from within, means, on said sections for contracting thecollapsible section,

and: meansnonisaidsections for permitting the withdrawal of the contractingsection on the-adjacentsection- ..-,-p

3. *A moldfforxsewers, &c., consisting of sections one of which iscollapsible, and said sectionsbeing adapted'to" be sustained and expanded from within, means for contract.-

ing the, collapsible'sc'ction, {and inwardlyextendlng portionson said sections for 'p'er mitting the withdrawal of the contracting" section on the adjacent section.

4. A mold for sewers, &c., consisting of sections, one of which is collapsible, and said sections being adapted to be sustained and expanded from within, means for contracting the collapsible section, and bent portions extending inwardly from said sections for permitting the withdrawal of the contracting section on the adjacent section.-

5. A mold for: sewers, &c., consisting of sections, one of which is collapsible, two in wardly-extending portions on each side of each of said sections and opposite each other for permitting the withdrawal of the corn tracting, section on the adjacent section, means within said mold and connected to said portions for expanding and sustaining the mold, and means for contracting the collapsible section.

6. A mold for sewers, &c., consisting of sections, one of which is collapsible, two in: Wardly-extending portions on each side of each of said sections and opposite each other for permitting the withdrawal of the conitracting section on the adjacent section, means within, said mold and connected to said portions for expanding and sustaining the mold, means for contracting the collap ble section, and means on said extending portions for engaging with said contracting means to permit said section to be contractod.

7. A mold For sewers, &c., consisting of sections, one of which is collapsible, two inwardly-extending portions on each side of each of said sections and opposite each other ceases a for permitting the withdrawal of the contracting section on the adjacent section, means within said mold and connected to said portions for expanding and siistaining.

the mold, means for contracting the collapsible section, and bent portions onsaid inwardly-extending portions for engaging with said contracting means to permit said section to be contracted {8. A mold for sewers, &c., composed of divided cylinders or members, and, means within said mold and fitting over the joint between the adjacenttwo divisionsof said members and capable of being expanded. and contracted to and fro'm'said joint.

9.' A inold for sewers, &c.,- composed of divided cylinders or men1bers-,nan( la sec ftional ring within said mold and fitting over the j ointfbetween the adj acent' two divisions of said member-sand capable of being ex panded and contracted to'and from said o nt.

,"'10. A mold for-sewers,due -composed of (.l1V l(lG(l cylinders or uinembers, a sectional rin'g' within said moldtand fittin cover the .joint between the adjacent-two iivisions of saidmembers, and means engaging with said ring-soctions for expanding and contracting the same, to and from said' j ointb-w 11. A mold for'sewers, &c.,-comipos ed of I divided cylinders or members, a sectional ring within said mold and fitting over the joint between the adjacent two divisions of said members, and means fitting between and engaging with the ends of said ring-seetions for expanding and contracting the same to and from said joint.

12. A mold for sewers, &c., composed of divided cylinders or members, a sectional ring within said mold and fitting over the joint between the adjacent two divisions of said members, screw-rods fitting between and engaging with the ends of said ring-sod tions, and a rotatable device engaging with said rods for expanding and contracting said ring-sections to and from said joint.

13. A mold for sewers, &c., composed of divided cylinders or members, a sectional ringwithin said mold and over the joint between the ends of said members, lugs on the adjacent two divisions of said ring-sections, screwn'ods, inclined blocks on the ends of said rods for engaging with said lugs, and a rotatable device engaging with said rods for moving said blocks to expand and contract said ring-sections to and from said joint.

14. A. mold for sewers, tc, consisting of sections, one of which is collapsi is, and said sections being adapted to be sustained and expanded from within, inwardly extending portions on said sections for permitting the withdrawal of the contracting section on the adjacent soc n, and connections between the ends cl portions for forming a tight joint between i c ends of said sections.

15. A mold for sewers, &c., consisting of sections, one of which is collapsible, and said sections being adapted to be sustained and expanded from within, inwardly-extending portions on, said sections for permitting the withdrawal of the contracting section on the adjacent section," and bolted screw rods fitting between the ends of said portions for forming a tight joint between the ends ofsaid sections. 16. A mold for sewers, &c., cons sections, one of which is collapsible, sections being ada ted to be sustained and I expanded from within, inwardly-extending ortions on said sections for permitting the withdrawal of the contracting section on the adjacent section, ln s on the ends 0 said portions, and bolte' screw-rods fitting between the ends of said portions and connected to saidlugsfor forming a tight joint between the ends of said sections.

17. A section for. a moldconsistin of a plate having a on the si e edges thereof and formed integral therewith forpermitting the some to be withdrawn on'theadjacent sect-ion.

18, A'section for a mold or sewers consisting of a late having-an inwardly-ex tending flange 30 thereof and formedjntegral therewith or isting of and said for sewers, &c.',"

flanged portion t portion on the side ed e permitting the same to be withdrawn on the adjacent section.

19. A sectionfor a moidfor sewers, &c., consisting of a glate having an inwardly-extendin flange portion on the side edge 5 thereo and formed integral therewith and at an angle thereto for permitting the same to -be withdrawn on the adjacent section.

20. A section for a .mold for sewers, &c., consisting of a late having an inwardly-ex- 4o tendin ortion on the side .edge' flange p thereo and'formed integral therewith and having integral lugs formed at the end of said Xortion for permitting the same to with rawn on the adjacent section, v 5 21. A section for a .mold for sewers, &c.,, consistingof a l to having an inwardly-utending flang portion on each side edge thereof and formed integral therewith and having integral lugs formed from the side edges of said rtiens for permitting the same to be wit drawn on the adjacent SG c-.

: In testimony whereof I, the said WILLIAM P. Esnnnmn'r, have hereunto set my hand. 5 WILLIAM P. nansnnnn'r.

' N.Coom,'

" WmR. McComion. 

